Nissan Forum - Nissan Enthusiast Forums - What all do I need for an SR20 Swap into my car?

So like forgive me if this has been answered a butt load of times. First off I'm a girl that knows nothing about motors other than your basic tune up. ;-) I do all other things for the most part on my own such as electrical, suspension, and brakes. I just want more power and an engine that has more aftermarket parts for building a fun toy. What all would I need in order for this to become a reality and fun to drive at the same time? I will post pics of him later from bone stock to where he sits today. He has 80K miles original and is currently in the body shop having special work and custom paint being done. He may be the only one that is as different in the USA. (2011 Nissan Sentra SE R Spec-V)
Thank you for all of your assistance in advance.